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OALib Journal期刊
ISSN: 2333-9721
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绿色荧光蛋白基因在脂肪细胞分化研究中的应用
, PP. 1119-1123
Keywords: 脂肪细胞分化,绿色荧光蛋白基因,过氧化物体酶增殖物激活受体γ2基因启动子
Abstract:
目的建立人脂肪细胞分化的绿色荧光蛋白活体检测动态模型,为进一步进行脂肪细胞分化及其相关基因表达研究奠定基础。方法用pcr法从培养的人前脂肪细胞总dna中扩增出过氧化物体酶增殖物激活受体γ2(pparγ2)基因启动子,将该启动子插入真核细胞表达载体pegfp-1后转染3t3成纤维细胞及人前脂肪细胞,并诱导脂肪细胞分化。结果在胰岛素、地塞米松及3-异丁基-1-甲基黄嘌呤诱导下,人前脂肪细胞分化为成熟脂肪细胞时表达绿色荧光蛋白基因,而3t3细胞则不能诱导为脂肪细胞及表达绿色荧光蛋白基因。结论脂肪组织特异表达的pparγ2基因启动子与绿色荧光蛋白基因构成的重组基因转化人前脂肪细胞后,能够用来动态活体检测脂肪细胞分化状态。这一模型的建立为脂肪细胞分化调控的分子机制研究提供一个更加方便的检测途径。
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